Labyrinth Level Bar Metal Sign

About the Level Bar design

A round outer wall frames this maze, broken by one narrow gap at the very top. Inside, curved walls step inward ring by ring, with short spurs that jog between them like stair treads. At the heart sits an open circular chamber, its wall left unclosed on the lower side. From that chamber a long straight wall runs level to the right through the inner rings, true as the line on a spirit level.